diff --git a/src/options_imp.cpp b/src/options_imp.cpp
index 0b4f6f733..a2f049f47 100644
--- a/src/options_imp.cpp
+++ b/src/options_imp.cpp
@@ -216,6 +216,8 @@ options_imp::options_imp(QWidget *parent):QDialog(parent){
   connect(checkDownloadLimit, SIGNAL(toggled(bool)), this, SLOT(enableApplyButton()));
   connect(spinUploadLimit, SIGNAL(valueChanged(QString)), this, SLOT(enableApplyButton()));
   connect(spinDownloadLimit, SIGNAL(valueChanged(QString)), this, SLOT(enableApplyButton()));
+  connect(spinUploadLimitAlt, SIGNAL(valueChanged(QString)), this, SLOT(enableApplyButton()));
+  connect(spinDownloadLimitAlt, SIGNAL(valueChanged(QString)), this, SLOT(enableApplyButton()));
   connect(check_schedule, SIGNAL(toggled(bool)), this, SLOT(enableApplyButton()));
   connect(schedule_from, SIGNAL(timeChanged(QTime)), this, SLOT(enableApplyButton()));
   connect(schedule_to, SIGNAL(timeChanged(QTime)), this, SLOT(enableApplyButton()));